<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="./animate.css">
  <style>
    #box{
      width:200px;
      height:200px;
      background: rgb(170, 27, 27);
      margin:100px auto;
   
    }
  </style>
  
</head>
<body>
  <div id="box" class="animated  zoomIn infinite"></div>
</body>
</html>